Do not pass discovery check candidates in Position::do_move()

[stockfish] / src / movepick.cpp

diff --git a/src/movepick.cpp b/src/movepick.cpp
index c90f8df1e6d398e2cf7f7ab3a4ae63be7c4f3dc1..59b134532e4ec5318884c9b2810d902d0af337cb 100644 (file)
--- a/src/movepick.cpp
+++ b/src/movepick.cpp
@@ -96,9 +96,6 @@ MovePicker::MovePicker(const Position& p, bool pv, Move ttm,
   else
       phaseIndex = (noCaptures ? NoMovesPhaseIndex : QsearchWithoutChecksPhaseIndex);
 
-  dc = p.discovered_check_candidates(us);
-  pinned = p.pinned_pieces(p.side_to_move());
-
   finished = false;
 }
 
@@ -394,7 +391,7 @@ Move MovePicker::pick_move_from_list() {
           moves[bestIndex] = moves[movesPicked++];
           if (   move != ttMove
               && move != mateKiller
-              && pos.pl_move_is_legal(move, pinned))
+              && pos.pl_move_is_legal(move))
               return move;
       }
       break;
@@ -414,7 +411,7 @@ Move MovePicker::pick_move_from_list() {
           moves[bestIndex] = moves[movesPicked++];
           if (   move != ttMove
               && move != mateKiller
-              && pos.pl_move_is_legal(move, pinned))
+              && pos.pl_move_is_legal(move))
               return move;
       }
       break;
@@ -442,7 +439,7 @@ Move MovePicker::pick_move_from_list() {
           move = badCaptures[movesPicked++].move;
           if (   move != ttMove
               && move != mateKiller
-              && pos.pl_move_is_legal(move, pinned))
+              && pos.pl_move_is_legal(move))
               return move;
       }
       break;
@@ -457,7 +454,7 @@ Move MovePicker::pick_move_from_list() {
           moves[bestIndex] = moves[movesPicked++];
           // Remember to change the line below if we decide to hash the qsearch!
           // Maybe also postpone the legality check until after futility pruning?
-          if (/* move != ttMove && */ pos.pl_move_is_legal(move, pinned))
+          if (/* move != ttMove && */ pos.pl_move_is_legal(move))
               return move;
       }
       break;
@@ -471,7 +468,7 @@ Move MovePicker::pick_move_from_list() {
       {
           move = moves[movesPicked++].move;
           // Remember to change the line below if we decide to hash the qsearch!
-          if (/* move != ttMove && */ pos.pl_move_is_legal(move, pinned))
+          if (/* move != ttMove && */ pos.pl_move_is_legal(move))
               return move;
       }
       break;